Hoisting and dumping mechanism.



G. A. WOOD. HOISTING'AND DUMPING MECHANJSIL' APPLICATION FQlLED AUG.2I,19l6. 9, v

. y 9 ESMETS-SHEET G. A. WOOD. HOISTING AND DUMPINGYIMECHANISM.

APPLICATION FILED AUGJL. me.

Patented July 9, 1918 2 SHEETS-SHEET 2.

LWLQW.

snares PATENT orat on,

GARFiELD A. W001), or nnrnoirji/iiciiieen.

. HOISTIN G LAND DUMPING MECHANISM.

Specification of Letters-Patent. Patented July 9, E5918,

Original application filed March s, 915, sem No. 14,430. Divided andthis application filed August 21,

T all whom it mag/concern:

1 Be it known that I, GARFIELD A. W001), a

citizen of the United States, residing at Detroit, in the county ofWayne and State 5 of Michigan, have invented a new and use ful Hoistingand Dumping Mechanism, of which the following is-a specification.

; of twisting stresses;

\ It is common practice to tilt. thebodies 1916.. Serial No. 115,957,

of warping, lack of accurate adjustment, or the like, and thus largelyrelieves, the pivots Again, the'present invention consists in thesupplementalcross frame or support 60 formed of spaced.- metal bars uponwhich is mounted both a hydraulic cylinder for tilt ing the body and apump for supplying liquid to the cylinder, whereby relative deflectionofftho pump and hoisting cylinder is re- 65 duced and leakage 'in' theconnections is of'the body'must be elevated is considerable, f

- Wliichftog'etheriwith the heavy loads and I tendency of the body tos'W-ing'laterally when elevated the to twisting of the frame of thechassis w en standing on an uneven. surface), as Well as the generallyrough "usage 20,130 YVlDCl'I t-lIG'ClQS/ICQS are otherwise Sub ect,

often cause bending of the piston rods-l The "i present invention]consists in improved means whereby the lifting force istransmitted. fromthe piston to the body? As shown, the piston rod is'hollow', whichaffordsa very greatly increased strength (COD-g sidering'the rod'itself)for a given Weight,

as well as a better connection between the rod and the cross armthan'can be secured 3.0 with thevsolid rod; it also forms part of thestorage reservoir for theoihthn s rendering thewhole constructioncompact.;The i.nven.

tion also consists in the reciprocable piston rod- .-;the cross-arm,sheaves carried on the ends of the rod (preferably in such mannor as toallow free universal swinging movemcilt transversely and longitudinallyavoided. The invention further consists in control mechanism for a gearpump supported by the cylinder 'at a point preferably Within convenientreach 0f the driveiyoo whereby the necessity of" modifying such portionsof the vehicle ,as-fo'rm no part of the hoisting unit is avoided. Foralike purpose, the invention also consists in control means for the pumpdriving clutch supported'onithe cylinder at a point preferably Withinreach of the driver. The Whole constructionis of such nature that it maybe manufactured substantially as a standard Y unit applicable todifierent makes and styles 30 of chassis with a minimum of special WorlcThe present application isa division oi my application for patent :onhydraulic hoisting device, Serial Number 14,480, filed March 15, 1915.'In the drawings, F gure 1 is fragmentary side view ofa motor truck sowing one embodiment of my invent on, parts be- 7 mg broken away. Fig. 2isa frontelevaof the vehicle) together with depending.

bodv arnisrigidly secured to the front, 611d p of the body on oppositesides of'the longitudinally extending. propeller shaft, and cablespnssingoverthe sheaves in such manner as to cause thefront end of thebody to rise substantially twice rapidly as the This construction is ofvery, great value inasmuch as it allows the use' of a relatively shorthoisting cylinder and.

4 5 piston rod;

.- pistonrod (which affords clearance in pass "ing overhead bridges andentering garages) 50 .and yet enables the long body to be tilted to ahigh angle; also because of the fact that .the equalizing means which isemployed in connection with the cables insures an application ofiubstanl'ially equal lifting force-to tion corresponding to. Figlxl,partsbeing omitted. Fig. 3' is a fragmentary side View of the lower endof one of the body brackets and the cable byvhich lifting force ap pliedto it. mFigat is a vertical longitudinal section through thehoistiiigcylindei'. Fig.

5 is a section cf theupper end of the piston at right angles toliig. 1.Fig. 6 is a section on'the line (3-0 of Fig.1. Upon the rear end 'ofeach of the side" frames 1 of the truck is rigidly secured a bracket 2bearing a pivot 3abou't which the 1 body l'inay be swung vertically fordump.- ing purposes; and the body may be provided at itslo'wer side Withthe longitudinal frame pieces 5 so arranged as to rest, when in-loweretl position, either on the side frames ,1- or in' special chairscarried thereby (not.

shown). This general construction is Well known. 55nd oft-he depend ngbody arms regardless. i The's1de frames may be cut awa at a pointforwardof the front end of thebody as indicated at 6, and may theresupport the cross bars 8 (preferably angle-irons having their horizontalflanges facing each other) upon which rests the flanged base 9 of ahoisting cylinder 10, the latter of whiohmay be'inclinedrearwardlyandsec'ured to the.

base by a screw joint 11 (Fig. 4). At its 'ipp'er end, the cylinder maypass through anexp'ansion chamber or tank 12 which is in freecommunication with the interior of the cylinder by means of the lowerpassage 13 and the upper passage 14. The filling opening of the chamberis closed by a plug 15, and in the bottom is a gland 16 whereby adischarge pipe 17 may be clamped in place. Various means may be employedfor securing the expansion chamber in position;

as shown, the upper end of the cylinder is reduced to form a seat 18(preferably conical). against which the chamber is clamped by aflange19. of a stufiing box-20 threaded -.into the interior ofthe upper.end of the.

cylinder at 21. a

Mounted to slide inthe box 20 isa hollow piston rod 22, the upper end ofwhich'is closed by a diaphragm 24:; thelower end of the rod ispreferably threaded on the amin lar shoulder 25 of a piston 26, whichmay be'provided. with the usual piston rings 28.

The piston may have projecting from its lower end the stud 29 thatcontacts with the base and carries the weight when in lowered position.Free passage of-liquidbetwe'en the inside of the rod and the annularspace around it is secured by the holes 30 just,

above the piston, whereby the interior 'of the rod may also be utilizedfor storage, purposes. And, in order'to admit airto the upper end of therod to allow the liquid to pass out into the cylinder as the pistonrises,

there is provided a tube 31, the upper end -of which is just" below thediaphragm, the

lower end opening through the pistonwall somewhat below the stutlingbox20 when the piston is in lowermost position. The joint between thepiston rod and the box 20 may packing ring 33- be sealed by the threadedand the packing 34.

It will be understood that the liquid by which the piston is elevated isnormally stored in the annular space above the piston, in the hollowrod. and inthe expansion chamber. Obviously, it may be pumped from thestorage space to the pressure space beneath the piston by variousdevices; but it is preferred to use a gear. pump36'bolted or otherwisesecured at 38 to the base 9 and driven from thepropeller shaft 39 of thevehicle by means of clutchmechanismdO I controlled by the levers 41,link 42 and lover 43. The valve shaft of thepump is shown at 4A in Fig?2 and may be operated by the lever 45, link 46 and lever 47. The reservoir discharge pipe 17 previously referred tion side to the pressureside of the gears 51-52 (through the latter of which the pro; pellershaft passes). and is connected-to the pipe 17 by the' passage 53. It isalso connected to the passage 49b'y the three-way valve 54 rigid withthe valve" shaft 4A.

It'will be observed (Figs. 2 and 6) that l I the propeller shaft 39 isspaced considerably from the gear 52this allows the cross-bars S to sinkappreciably (as they do under" heavy loads) without inducing bending.stresses in the shaft, and also "avoids the necessity for accuratealinementof theilatter in respect to the gear.

The elements shown but not claimed here, in are claimed in myapplication for Patent Serial Number 14,480, referred toabov'e;

also my application forPatent-Serial Nan ber 14,4179, filed March.l5,1915. They are again shown and described in the'presentt application inorder tozillustratecl'arly' the peculiarservice to wlii'ch'the liftingele- 4/ ments are subjected as of the closure 24.

well as the pu rpose The use ofthehollow piston;- allows across barGOtobe firmly slipportedbybeing passed through "a hole in theupper endof the rod. Each end-"of the cross bar is grooved at 61 tooreceive ashackle 62, portions of which extend downwardlyfrom 63,-upon the latterofwhich a second shackle 64 bearing the shaft 65 and pulley 66 isadapted to Swing. Securedto the base 9 or other fixed part of the hoistis a shackle 68 towhich an equalizing-bar69 is pivoted at '10; andattached to the ends of the latter are I either side of the bar tosupport a pivot pin the cables .71 that passoverthe pulleys 6G and aresecured to thebrackets 72, rigidwith 'the bodv. Theends 73 of theshackle Q2are bent to conform to the curvature ofthe pulley whereby thecable is retained in position I Thefparts are" normally in the position"shown, the upper level of the oil (or other liquid) being slightly belowthe-upper wall of the chamber 12 in order to allow'fopexpansion. \Vhenit is; desired to hoist the load, the clutch lever and pump valve aremanipulated in the proper manner'andoil is drawn from the reservoir and.forced be neath the piston. As soon as the piston has been elevated adistance suflicient .to cause the lower end of-the tube 3l'toclear thepacking ring '33, air rushes in through the tube and the contents of therod thereafter runs out into the annular space surrounding v is locatedjust beneath the? diaphragm, the liquid may rise until i substantiallythe en- 3 and prevents air from being sucked into the it and isdelivered to the expansion. tank as" inder, a' cross piece passingtransversely through andprqecting laterally in opposite I the pistonrises, This. action maintains a r liquid seal over therent'rance to thepipe 17 pump. The piston maybe lowered by turning the pump valve in'positi'on to allow the oilto escape back through the passage 19- andpipe 17 into the tank cylinder and pis ton rod. Without passing, throughthe gears- 51-,52, the air-escaping through the tube 31." However,before the liquid! can possibly 1 overtop the tube, the lower end of thelatter};

' will have passed into the packing ring 33,v A thus: preventing any ofthe liquid from escaping. Since the upper endofthetube tire capacityofthepiston rod is utilizedfor storage-purposes, fWhe'n it is desired?to; lower the body, thevalve'fieis turned into the position shown (Fig.6) which allows the liquid to .by-pass the pump; gears.

' stresses in the latter.

' of the body which allows" application of the It will be seen thattheipointsof attacha ment of thecables 71 to the bracke'ts72 are spacedapart from each- 'other transversely equalized li'ftingiorces to thehody in such manner, as toefiectually takeup the twisting It is alsoapparent that the: equalization .ofstresses coming to the piston 22 fromthe opposite; endsof the bar 60avoids the secondary stresses that wouldotherwise occur therein, and also prevents undue'frict i'on of thepiston in the members 20.33L (The locationof the cross 7 bar 60 abovethe closure 24is also of imvportance in that leakageis thus prevented.

It is clear that many changes may be made in the "details ofconstruction without declaims.

parting fromthe spirit-of my'in vention. "I

do not, therefore, Wish to'belimited other- Wise than as indicated bythe subjo'ined- -Iclaim:+ V J 1'. Hoisting mechanism comprising a cylv Yinder, a piston slidable therein, a hollow pis:

ton rod connected to thepiston, cylinder having an end; through whichthe piston rod passes'and'to which itlclosely conprojecting glaterallyin opposite directions forms, whereby the pis on rod is-guided formovement parallel to t e'aXis-of the cylinder, a crosspiece carried'bythe" end of the rod remote from the pistonfsaid 'cross piece port forthe cross piece, cablesucoiiperating with, theprojectjng portio'nsof thecross piece vforrlifting a load, and means for equalizing the stressesinthe cables. I v

it 2.-Hoisting mechanism comprising a'cyl- 'i'nder, a piston slidabletherein, a hollow piston rod connected to the piston, said cyl-- inderhaving an end through which the'pistonj rod passes and towhich itclosely conforms,"- whereby the piston rod is guided for liftingmovement parallel to the axis of the cyldirections from the end of therod remote from the piston, said rod forming abroad and rigidsupport-for the cross pieceycables cooperating with the projectingportions of for equalizing the stresses in the cables. '3.Hoistingmechanism comprisinga cyl- I the-cross piece for lifting a load,and means I inder, a piston slidable therein, a-hollow piston rodconnected to the piston, said cylinder having an end-through which thepiston'rod'passcs and to which it closely conforms, Wherebythe pistonrod is guided for movement parallel to'the axis of the cylind'er,ajfixedclosure for the piston rod said closure being removed somewhat from theend of the rod remote from-the piston, a"

cross piece carried by-said'end of the rod and pro ecting laterallyinopposite direc tions therefrom, and means cooperatingwith the projectingportions of the cross piece forms, whereby the piston, rod s guided for.movement'para'llel to'the aXis ,of the cyllinder, a cross piece carriedy; the end of the rod remote fromthe pist n projecting.

laterally in opposite directions therefrom, a

sheave and a universal-support therefor car-. \1 ried on each projectingpprtion of the crosspiece, cables passing 'over the sheaves (for Incombinatlon W1 spaced horizontal pivots located near the rear end of thebody, an upright hydraulic hoistingecylinder located forward of thefrontend of the body,,a piston rod slidable therecured to the up er end ofthepiston rod and "pro ect ng transversely of the vehicle,

sheaves supportedby the outer ends of the cross-piece, flexible"means-passing over the body, and means otherthan the body. of the.cylinder for, transmitting stresses from the inder, a piston and pistonrod; therein,

one end of the latter projecting from the thth'eframe o'f a -motorvehicle and a body tiltable' about a load, andmeans for equalizing, thestresses in the cablesv in, said piston rod projectingfrom' the upperend of the cylinder, a cross piece se-Q sheaves andsecuredto the frontend of the cylinder, 21- cross-piece attachedto the proiecting' end ofthe'piston rod' and extending grooved, a shackle seated in said groove,portions'of the shackle being bent substanlaterally therefrom, .thecross-piece being I, right angles to-the axis of the grooved por- 35endof-"the'latter projecting from the cylintially parallel to eachother, a pin passing I ends in a direction parallel to the groovedportion of the cross-piece, and a grooved the shackle being-bent'substantia to each other, a pin passing through the par-' pulley earnedby rotatable inrespect to the shaft.- v

I 7 Hoisting mechanism eomprising a, cylinder, end of the latterprojecting from the cylinder, a cross-piece attached to the projecting lend of the piston rod and extending laterally therefrom, the cross-piecebeing grooved,

a shackleseated in said groove, portions of ly parallel allel portion oftheshackleibelow and at I tion of the cross-piece, a second shacklepass- I ing ove'rthe pin and having depending ends,

a shaft passing through said ends in a direction parallel to the groovedportion of-the cross-piece, and a' grooved pulleycarried by in thecable, whereby secondary stresses-in motor vehicle and a body [tiltableabout a piston and piston .rod therein, one

in a direction spaced'horizontalpivots-.lochted nearits rear end, cablesattached to the free frontend of the body at points removed from eachother tlvelyv pass, a cross bar upon which thepuL leys-are supported, ahollow-piston upon parallelto the axis of the'pivo ts, pulleys overwhich the cables respecwhich the cross bar is carried and by which.

it maybe thrust in a direction to tilt the body, and meanslforequa'lizing the'stress'es 8'0 in-the cable,'whereby' secondarystresses in the body and in the piston are avoided.

' and rotatable in respect to ,the shaft, a cable passing over saidpulley, said first mentioned ,shackle having end portions shaped to con-'1 pulley along the upper side thereof, Wheres motor vehicleand a form.to thevcurvature of the face of "the by the cable is preventedfrom-leaving the groove the pulley. y

11. In-combination with the frame of a motor vehicle and "a bodytiltable about spaced horizontal pivots located near its rear end,cables attached to theifree front end of the body at points removed fromeach other in a direction parallel tothe axis of the pivots, pulleysover which the cables respectively pass, a cross bar upon which thepulleys are supported, a hollow piston through which the .cross barpasses and by which it may be thrust in a direction'to tilt the body,

and means for equalizing the stresses in the der, a cross-piece;attached to the projecting end ofthepiston rod andextending laterallytherefrom, ashackleseated on and {LIT-.-

40- ranged to swing vertically, in respect to the cross piece, a. pin:passing through the i shackle, a second shackle mounted on the lthereon, said body'being pivoted-on spaced 1e passing over said pulley,the ends of t e first mentioned shackle being 'curveddownwardly aroundthe pulley, whereby .sition thereon.

the cable ls'retained'in podin-combination with the frame of a motorvehicle and a body tiltable vertically pivots, cables attached to thefree end of the body at points removed from each other ina directionparallel to the axis of the pivots, pulleys over which the cablesrespectively pass, a cross bar upon which the pulleys are supported, ahollow. piston upon which the cross bar is carried andlby which it maybe thrust in a direction to tilt'the body, and means for equalizing thestresses pin to 7 swing in a vertical plane" at right I angles to theswinging movement of the first cable, whereby secondarystresses in thebody and'in the piston are avoided.

12. ln combination with the frame of a body tiltable vertically thereon,said body being pivoted on spaced pivots, cables attached to the freeend of thebody at points removed from each other in a direction parallelto. the axis of the pivots, pulleys over" which the cables respectivelypass, a cross bar upon which the pulleys are supported, connectionsbetween the crossbarjand the pulleys whereby universal swingingmovements of the latterin respect to the. former are whichthe cross baris carried and by which it may be thrust in a direction to t-iltthebody, a cylinder'in which the piston slides,

. andmeans for equalizing the stresses in the pe p of the cylinder,

cable and forltransmitting said stresses to a point near the lowerend ofsaid cylinder without passing through the body ,of said tudinallyextending propeller shaft for the truck, means rigidly "secured to theforward portion of the body and depending therefrom on opposite sides ofthe' propeller shaft, an upright hoisting cylinder'carried by the frame,a piston' rod slidable in said whereby secondary stresses in thebody'andjl-n the piston areavoidedl permitted, apiston upon purposes, alongicylinder, sheaves carried by said piston rod,

and cable means passing over said sheaves, said cable means beingattached to the lower end portions of the depending means on-op-" positesides of the longitudinal vertical plane through the propeller body maybe tilted.

14. A. truck comprising a frame, a body, tiltable about an axis near therear end of said frame for dumpingpurposes, a longitudinally extendingpropeller shaft fonthe truck, meansrigidly secured, to the forward bythe frame, a piston frod slidable insaid cylinder, .a,cross -armmountedon the upper portion of the body and depending therefrom on,opposite sides of the propeller shafhan upright hoisting cylindercarriedI end of the piston rod, sheayes suspended on .the enter ends of saidcross-arm, said she aves longitudinally of the truck, and cable meanspassing oversaid sheaves, sald cable meansbeing capable'of swingingtransversely'a'nd being attached tothe lower end'portio'ns of if thedepending means ongopposite sides of" the longitudinal vertioalfplanethrough the propeller-J shaftwhereby. the body .may' be 15.yehiclelcomprising a' frame a body tiltableaboutalined-bearings locatedon op'- fposite' side portions of the rear end of the frame, means fixedto the front end of the I body and'depending from the'latteron'op positesides of the longitudinal central: vertical plane thereof, 'an uprighthydraulic hoistin'gmylinder carried 'bythe frame at a point forward ofthefront end of the. body,

f a piston rod slidable' in said cylinder, sheaves Y carriedby'th'eu-pperend of said piston-rod,

' tilt, an upright hydraulic hoisting cylinder 16. A truck comprising'aframe, a body pivoted near the rear end of said frame to' carried by theframe at a point fo'rwardof the front end of the body, apiston rodslidable; therein, a'nd means, ineluding'across ,tions of the flexiblemeans.

arm carried by the upper end of the piston rod, sheaves supported on theouter ends of thecross-arm, and .flexible means passing about saidsheaves, said flexible means hav ing-portions attached tothe frontportion of said body on eppositesides of'the verticalcentrallongitudinal plane thereof, and means for 'equalizingthe stresses in thepor- 171A "truck comprising a frame, abody tiltable about an axisnearthe rear end of said frame for dumping purposes, a longitudinallyextending propeller "shaft for the truck, means rigidly secured to theforward portion of thebody and depending therefrom onjopposite sidesofthe propeller sh aft.

shaft, "whereby the w an .upright'hoisting cylinder carried by theframe, a piston rod slidable in said cylinder, sheaves harmed bysaid'piston rod, and cable means passing over said. sheaves, sa d cablevmeans having two portions attached at their ends to the correspondingdepending por tions of the means which is rigid with the forward portionofthe body, and means for equalizing the stresses in the two portions ofthecable means.

' 18. A truck comprising a frame, a body tiltable about an axis near therear end 'of said frame for dumping purposes, a longitudinally extendingpropeller shaft "for the 1."

truck, means rigidly secured to the forward portion of the body anddepending there-' from on? opposite sides of the propeller shaft, anupright hoisting cylinder carried by the framefa piston rod slidable insaid if cylinder, and cable means-associated with said-piston'rodandsaid depending portions of the means which is rigid with the forwardportion ofthe body whereby saidfront end of the body is caused to risemore rapidly than-the piston rod. v

1.9. A truck comprising a frame, a body tiltable about" an axis neartherear end of, ,said'frame for dumping purposes, a longitu dinally'extendingpropeller shaft for the truck, a pair of body arms secured tothe forward portion of the body and depend I ing therefrom on oppositesides o the propeller shafts-"an upright hoisting cylinder carried bythe frame, a-pistonrod slida'ole in said cylinder, --sheaves-carried bysaidpiston rod or; opposite sldes thereof, cables attach'edto the lowerendspf the corresponding body arms and passing over said sheaves,

and 'means for, equalizing the stress in said cables, whereby the frontend of the body is elevated at air'nore rapidratesthan the relieved oftwisting stresses. I

A 1 20. A vehicle comprisinga, frame, a body I .tiltable about alinedbearingsslocated on opposite side portions of the rear-lend of theframe, body arms attached to, the front end of the body and dependingfrom the latter -.on opposite sides of thelongitudinal central vertical,plane thereof, an upright hydraulic hoisting cylinder carriedby theframe at point forward of the front end of the body, a pistonrodslidable in said cylinder, and

flexible means associated with said piston rodwhereby the front end'ofthe body is elevated at a more rapid rate than said piston rod. I

21. A vehicle comprising a frame, a body tiltableabout alined. bearingslocated on opposits side'portions of' the rear end of the frame, bodyarms attachedto the front end of thebody and depending from the latteron opposite sides of the longitudinal central vertical plane thereof, anupright hydraulic .hoistingcylinder carried by'the frame at a piston rodand Wherebythe body is largely point forward of the front end of thebody,

a piston rod slidable -in' said cylinder, "at

' cross-arm'supported by the upper end of the piston rod and'exten'dingtransversely of the vehicle, sheaves suspended on the end port'ionsof'sa'id cross-arm 'andswlngable cross- I wise of the vehicle, andflexible means-assopiece attached to the-projecting end of the pistonrod and extending'laterally thereshackle seatedinsaid' groove, portionsof the shackle being. bent substantially-parallel to eachother, a pinpassing through the par.-

al'lel portion of the shackle below and at rig-ht angles tothe axis ofthe grooved pordirection parallel-to the grooved portion'of androtatable inr'espect to the shaft, and a cable passingover said pulleyand securedto the body thIOllgh which force theulatter is transmitted.

for tilting tiltable about ahorizontal axis' near the rear end of saidframe, an uprightcylinder supported by the frame forwardly of the frontend of the'body, a piston and piston rod 40.slidable therein, saidpiston rod passing out of the'upper end'of' the. cylinder, a cross eachother, a pin assing through the paralle'l portion oft e shackle belowand at right angles to the axis, of the grooved por- .tion ofthecross-piece, a second shackle pass ing over the pin and havingdepending ends,

a'shaft passing through said ends in a direc tion parallel to thegrooved ortion of the cross-piece, and a grooved p'u ey carried by,and'rotatable in respectlto'the shaft, a cable passing oversaid-pulley, said cablebeing connected to the front-end of the body,said first'me'ntione'd shackle having end portions shaped .to conform tothe curvature of the face of the pulley along the upper-side thereof,whereby the cable is revented from leaving 1 he groove in the .pu ley.

24. A vehicle comprising a frame, a body til-table about a horizontalaxis near the rear end of said frame, an upright cylinder supframe, abody fr0m,' the cross-piece being grooved, a]

the cross-piece,-'a'grooved pulley carried by 23. A vehicle comprising aframe, a

' from the propeller shaft, wher ported by the frame forwardly of thefront end ofthe'body,'a piston rod passing out of the upper'end of thecylinder, across-piece i I attached to the projecting end of'the piston7 rod and extending flaterally therefrom, a

shackle seated on and arranged to fswmg f f vertically in respect to thecrossepiece 'a pin passing :through' the shackle, a second shacklemounted onthe pinto swingfin'a I vertical plane at right angles-to theswinging movement of'the'first mentioned shackle, said second" shacklehaving depending ends,

v a horizontal pin passing through th'e ends'of the second shackle, apulley rotatable in re spect to the pin,- a cable passing overr saidpulley,--said vcable being attached to the front end of the body,the'ends'ofthefirst "mentioned shackle. beingcurveddQWn-',' fwardlyaround the periphery oftherp ille'y, 'the'cable is retained in' poSitionSS whereby thereon,

25.11; combination with the frame ef a f motor vehicle and; with adrivensha'ft thereof, a supplemental frame supported; on

f-thelfipst-mentionedframe, a hoisting cylin 9o tion of "thecross-piece, a second shackle I passing overtl epin 'and havingdepending ends, a shaft passing through said ends in ader carried by thesupplemental'fram% liftmg means associated with'the hoisting cylin er,agear'pum'p also supported on the,

supplemental frame in operative relation to the hoisting cylinder andlifting means, 19 5 means. for driving the gear pump --from"tlie" drivenshaft, wherebyrelatiye vdeflection of 1 the gear pump and hoistingcylinder, re-.

duced and leakage is avoided; 26.- In cohbination with-the frame} tionedframe, a hoisting cylinder carried by the supplemental-frame, liftingmeans associated w-ith the hoisting cylinder, apump also supported onthe supplemental framemn" operative relation to the cylinder and hoist:

in}; means, means for driving the from the propeller shaft, wherebyrelative ciated with the hoisting cylinder, a pump also supportedonthesupplemental frame in '-o1')erative relation to the cylinder =and12choisting means, means for drivi 1 the pump iy relative deflection of thepump and hoisting cylinder is reduced and leakage is avoided.

' 28; In combination with the frame of a motor vehicle and with a drivenshaft thereof, a supplemental frame supported on the first-mentionedframe, a hoisting cylinder carried by the supplemental frame, liftingmeans associated with the hoisting cylinder, 13!) a 1 the propellershaft of a motor veh1cl'e,- -a sup- 5 plemental frame supported onthe-first r'nendeflection of. thepump and hoisting cylinder 116- isreduced and leakage is avoided. I

a gear pump also supported on the'S PP mental frame in operativerelation to the hoisting cylinder and lifting means,f means for drivingthe gear pump" from thedrivenshaft, whereby relative deflection of thegear pump and hoistin cylinder is reduced and leakage is avoide meansfor controlling thepump, and means for controlling the transmission ofpower from the driven shaft to the gear pump, said controlling meansbeing bothloeated on the cylinder.

29. In combination withthe sidebars and i the, propeller shaft ,of amotor vehicle, a

' supplemental frame, lifting means assosupplemental frame extendingacross betWeenLthe side bars and above the propeller shaft, a hoistingcylinder carried by the ciated with the hoisting cylinder, a pump alsosupported on the supplemental frame in operative relation to thecylinder and hoisting means, means [for driving the pump from thepropeller shaft, whereby relativesaid frame, an uprightv hoistingcylinder mounted forwardly of the front end of the body, a piston rodreciprocabletherein, means associated with the upper end of the pistonrod whereby movement of the latter may cause thebody to tilt, a pump forsupplying liquid to the cylinder, and control mechanism for thepum saidcontrol mechanism comprising an e ement supported by the cylinder atsubstantially the upper level thereof. 3 v

31. A vehicle comprising a frame, a body tiltable about an axis near therear end of said frame, an upright hoisting cylinder mounted forwardlyof the front end of the body, a piston rod reeiprocable therein,

, tcr to the body.

means associated with the upper end of the piston rod whereby movement,of the latter may cause the body to tilt, a pump for supplyingliquid tothe cylinder, a valve for the pump, and valve controlling meansincluding a hand lever supported on the cylinderQ 32. A vehiclecomprising a frame, a bcdy tiltable about an axis near the-rear end ofsaid frame, an upright hoisting cylinder mounted forwardly of the frontend ofthe body, a piston rod reeiprooable therein, means associatedwith'the upper end of the piston rod whereby movement of the latter maycause the body to tilt, a pump for supplying liquid to the cylinder, adriving shaft for the pump, means for. connecting and disconnecting saidshaft to the pump, and controlling means for said last mentioned means,said controlling means including a hand lever supported on the eylinder.

33. In combination with the side bars and the. centrally arrangedlongitudinally extending propeller shaft of a motor truck, a bodytiltable about a horizontal axis near the rear end of the side bars, across frame supported on the side bars forwardly of the front end of thebody, a hoisting cylinder rising from the central portion of said crossframe, a piston rod'reeiprocable in said cylinder and projecting fromits upper end, there being two open spaces inclosed by the side bars andthe cross frame,

one on each side of the base of the hoisting cylinder, a pair of bodyarms secured to the front end portion of the body and each dependinginto the corresponding open space when the body is-lowered, and cablemeans attached to the lower ends of the body arms and cooperating withthe piston rod to transmit lifting stress from the lat In testimonywhereof I sign this specification.

GARFIELD- A. woon.

